#include<bits/stdc++.h>
#define ll long long
#define pii pair<ll,ll>
#define f first
#define s second
#define pb push_back
#define all(x) x.begin(),x.end()
using namespace std;
const int mxn=3e5+5;
ll t[4*mxn]{0},lz[4*mxn]{0};
void push(int i,int l,int r){
if(lz[i]==1e16)return;
t[i]=lz[i]*(r-l+1);
if(l<r)lz[2*i]=lz[i],lz[2*i+1]=lz[i];
lz[i]=1e16;
}
void update(int i,int l,int r,int tl,int tr,ll v){
push(i,l,r);
if(r<tl||l>tr)return;
if(r<=tr&&l>=tl){
lz[i]=v;push(i,l,r);return;
}int m=(l+r)>>1;
update(2*i,l,m,tl,tr,v);update(2*i+1,m+1,r,tl,tr,v);
t[i]=t[2*i]+t[2*i+1];
}
ll query(int i,int l,int r,int tl,int tr){
push(i,l,r);
if(r<tl||l>tr)return 0;
if(r<=tr&&l>=tl)return t[i];
int m=(l+r)>>1;
return query(2*i,l,m,tl,tr)+query(2*i+1,m+1,r,tl,tr);
}
int main(){
ios_base::sync_with_stdio(0);cin.tie(0);
int n;ll d;cin>>n>>d;ll c[n+1],a[n+1],b[n+1],qa[n+1];
for(int i=1;i<=4*n;i++)lz[i]=1e16;
for(int i=1;i<=n;i++){
cin>>c[i];b[i]=c[i]%d,a[i]=c[i]/d;
}ll pf[n+1]={0},spf[n+1]={0};
for(int i=2;i<=n;i++)pf[i]=pf[i-1]+(b[i]<b[i-1]);
for(int i=1;i<=n;i++)spf[i]=spf[i-1]+pf[i],qa[i]=qa[i-1]+a[i];
vector<pii>qr[n+1];int q;cin>>q;ll ans[q+1]={0};
for(int i=1;i<=q;i++){
int l,r;cin>>l>>r;qr[r].pb({l,i});
}vector<pii>g;
for(int i=1;i<=n;i++){
int l=1,r=i;
while(l<r){
int m=(l+r)>>1;
if(query(1,1,n,m,m)>a[i]-pf[i])r=m;
else l=m+1;
}update(1,1,n,l,i,a[i]-pf[i]);
for(auto it : qr[i]){
ans[it.s]=qa[i]-qa[it.f-1];
ans[it.s]-=query(1,1,n,it.f,i);
ans[it.s]-=spf[i]-spf[it.f-1];
if(query(1,1,n,it.f,it.f)+pf[it.f]<0)ans[it.s]=-1;
}
}
for(int i=1;i<=q;i++)cout<<ans[i]<<'\n';
}
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
2396 KB |
Output is correct |
2 |
Correct |
0 ms |
2396 KB |
Output is correct |
3 |
Correct |
0 ms |
2396 KB |
Output is correct |
4 |
Correct |
6 ms |
2908 KB |
Output is correct |
5 |
Correct |
6 ms |
2904 KB |
Output is correct |
6 |
Correct |
4 ms |
2652 KB |
Output is correct |
7 |
Correct |
4 ms |
2652 KB |
Output is correct |
8 |
Correct |
8 ms |
2908 KB |
Output is correct |
9 |
Correct |
7 ms |
2924 KB |
Output is correct |
10 |
Correct |
6 ms |
2924 KB |
Output is correct |
11 |
Correct |
6 ms |
2928 KB |
Output is correct |
12 |
Correct |
6 ms |
2924 KB |
Output is correct |
13 |
Correct |
5 ms |
2908 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1112 ms |
52304 KB |
Output is correct |
2 |
Correct |
1081 ms |
51452 KB |
Output is correct |
3 |
Correct |
146 ms |
13908 KB |
Output is correct |
4 |
Correct |
1161 ms |
51284 KB |
Output is correct |
5 |
Correct |
1197 ms |
51200 KB |
Output is correct |
6 |
Correct |
1052 ms |
51004 KB |
Output is correct |
7 |
Correct |
1087 ms |
51020 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
143 ms |
17492 KB |
Output is correct |
2 |
Correct |
1086 ms |
55540 KB |
Output is correct |
3 |
Correct |
1179 ms |
55544 KB |
Output is correct |
4 |
Correct |
1174 ms |
55536 KB |
Output is correct |
5 |
Correct |
1192 ms |
55632 KB |
Output is correct |
6 |
Correct |
1117 ms |
52464 KB |
Output is correct |
7 |
Correct |
1099 ms |
52304 KB |
Output is correct |
8 |
Correct |
1106 ms |
52564 KB |
Output is correct |
9 |
Correct |
1108 ms |
52308 KB |
Output is correct |
10 |
Correct |
1097 ms |
51032 KB |
Output is correct |
11 |
Correct |
1193 ms |
50924 KB |
Output is correct |
12 |
Correct |
1137 ms |
53992 KB |
Output is correct |
13 |
Correct |
1162 ms |
54112 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1016 ms |
44400 KB |
Output is correct |
2 |
Correct |
1204 ms |
52052 KB |
Output is correct |
3 |
Correct |
378 ms |
23124 KB |
Output is correct |
4 |
Correct |
1250 ms |
52052 KB |
Output is correct |
5 |
Correct |
1109 ms |
52820 KB |
Output is correct |
6 |
Correct |
1210 ms |
55552 KB |
Output is correct |
7 |
Correct |
999 ms |
46848 KB |
Output is correct |
8 |
Correct |
1330 ms |
55376 KB |
Output is correct |
9 |
Correct |
1245 ms |
51448 KB |
Output is correct |
10 |
Correct |
1213 ms |
51180 KB |
Output is correct |
11 |
Correct |
1192 ms |
52220 KB |
Output is correct |
12 |
Correct |
1293 ms |
51544 KB |
Output is correct |
13 |
Correct |
1253 ms |
55280 KB |
Output is correct |
14 |
Correct |
1241 ms |
51284 KB |
Output is correct |
15 |
Correct |
1263 ms |
55292 KB |
Output is correct |
16 |
Correct |
1275 ms |
51264 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
2396 KB |
Output is correct |
2 |
Correct |
0 ms |
2396 KB |
Output is correct |
3 |
Correct |
0 ms |
2396 KB |
Output is correct |
4 |
Correct |
6 ms |
2908 KB |
Output is correct |
5 |
Correct |
6 ms |
2904 KB |
Output is correct |
6 |
Correct |
4 ms |
2652 KB |
Output is correct |
7 |
Correct |
4 ms |
2652 KB |
Output is correct |
8 |
Correct |
8 ms |
2908 KB |
Output is correct |
9 |
Correct |
7 ms |
2924 KB |
Output is correct |
10 |
Correct |
6 ms |
2924 KB |
Output is correct |
11 |
Correct |
6 ms |
2928 KB |
Output is correct |
12 |
Correct |
6 ms |
2924 KB |
Output is correct |
13 |
Correct |
5 ms |
2908 KB |
Output is correct |
14 |
Correct |
1112 ms |
52304 KB |
Output is correct |
15 |
Correct |
1081 ms |
51452 KB |
Output is correct |
16 |
Correct |
146 ms |
13908 KB |
Output is correct |
17 |
Correct |
1161 ms |
51284 KB |
Output is correct |
18 |
Correct |
1197 ms |
51200 KB |
Output is correct |
19 |
Correct |
1052 ms |
51004 KB |
Output is correct |
20 |
Correct |
1087 ms |
51020 KB |
Output is correct |
21 |
Correct |
143 ms |
17492 KB |
Output is correct |
22 |
Correct |
1086 ms |
55540 KB |
Output is correct |
23 |
Correct |
1179 ms |
55544 KB |
Output is correct |
24 |
Correct |
1174 ms |
55536 KB |
Output is correct |
25 |
Correct |
1192 ms |
55632 KB |
Output is correct |
26 |
Correct |
1117 ms |
52464 KB |
Output is correct |
27 |
Correct |
1099 ms |
52304 KB |
Output is correct |
28 |
Correct |
1106 ms |
52564 KB |
Output is correct |
29 |
Correct |
1108 ms |
52308 KB |
Output is correct |
30 |
Correct |
1097 ms |
51032 KB |
Output is correct |
31 |
Correct |
1193 ms |
50924 KB |
Output is correct |
32 |
Correct |
1137 ms |
53992 KB |
Output is correct |
33 |
Correct |
1162 ms |
54112 KB |
Output is correct |
34 |
Correct |
1016 ms |
44400 KB |
Output is correct |
35 |
Correct |
1204 ms |
52052 KB |
Output is correct |
36 |
Correct |
378 ms |
23124 KB |
Output is correct |
37 |
Correct |
1250 ms |
52052 KB |
Output is correct |
38 |
Correct |
1109 ms |
52820 KB |
Output is correct |
39 |
Correct |
1210 ms |
55552 KB |
Output is correct |
40 |
Correct |
999 ms |
46848 KB |
Output is correct |
41 |
Correct |
1330 ms |
55376 KB |
Output is correct |
42 |
Correct |
1245 ms |
51448 KB |
Output is correct |
43 |
Correct |
1213 ms |
51180 KB |
Output is correct |
44 |
Correct |
1192 ms |
52220 KB |
Output is correct |
45 |
Correct |
1293 ms |
51544 KB |
Output is correct |
46 |
Correct |
1253 ms |
55280 KB |
Output is correct |
47 |
Correct |
1241 ms |
51284 KB |
Output is correct |
48 |
Correct |
1263 ms |
55292 KB |
Output is correct |
49 |
Correct |
1275 ms |
51264 KB |
Output is correct |
50 |
Correct |
1238 ms |
55544 KB |
Output is correct |
51 |
Correct |
1239 ms |
52472 KB |
Output is correct |
52 |
Correct |
1208 ms |
52476 KB |
Output is correct |
53 |
Correct |
1297 ms |
50936 KB |
Output is correct |
54 |
Correct |
1239 ms |
54008 KB |
Output is correct |
55 |
Correct |
1247 ms |
55384 KB |
Output is correct |
56 |
Correct |
1308 ms |
51212 KB |
Output is correct |
57 |
Correct |
1251 ms |
51192 KB |
Output is correct |
58 |
Correct |
1185 ms |
51212 KB |
Output is correct |
59 |
Correct |
1252 ms |
53332 KB |
Output is correct |
60 |
Correct |
1225 ms |
51196 KB |
Output is correct |
61 |
Correct |
1120 ms |
50884 KB |
Output is correct |
62 |
Correct |
1138 ms |
50944 KB |
Output is correct |
63 |
Correct |
1094 ms |
53748 KB |
Output is correct |
64 |
Correct |
1194 ms |
51284 KB |
Output is correct |